L-Tyrosine--Sunway (Hangzhou) Biotechnology Co., Ltd.

Overview

Product Overview & Core Technical Identity

SUNWAY supplies high-purity L-Tyrosine crystalline powder with enterprise standard quality consistent with USP & FCC monographs. Our L-Tyrosine adopts refined purification process, strictly controlled heavy metal & microbial limits, stable batch-to-batch uniformity, and supports four major industrial application tracks: human dietary supplements, functional food & beverage, cosmetic skincare, and animal feed additives. All products pass full-index HPLC batch testing, 12-month batch sample retention for full traceability, flexible MOQ from 5kg trial order to ton-level bulk shipment, and mixed consolidated loading with vitamins & coenzymes to cut your procurement logistics cost.

Technical Identity

Test Items	Standards	Test Results
Appearance	White crystalline powder	White crystalline powder
IR Identification	Complies with reference spectrum	Complies
Assay (Dried Base)	98.5% ~ 101.5%	100.6%
Specific Rotation [alpha]D25	-9.8 deg ~ -11.2 deg	-10.55 deg
Loss on Drying	<=0.3%	0.13%
Residue on Ignition	<=0.4%	<0.4%
Chloride (Cl)	<=0.04%	<0.04%
Sulfate (SO4)	<=0.04%	<0.04%
Single Chromatographic Impurity	<=0.5%	Complies
Total Chromatographic Impurities	<=2.0%	Complies
Heavy Metal (Total Pb)	<=15ppm	Complies
Iron (Fe)	<=30ppm	Complies
Lead (Pb)	<=3ppm	Complies
Cadmium (Cd)	<=1ppm	Complies
Mercury (Hg)	<=0.1ppm	Complies
Arsenic (As)	<=1.5ppm	Complies
Total Aerobic Microbes	<=1000 CFU/g	Complies
Yeast & Mold	<=100 CFU/g	Complies
E. coli	Negative	Complies
Staphylococcus aureus	Negative	Complies
Salmonella	Negative	Complies

Functions

Physiological Functions & Industry Application Logic

1.Neurotransmitter Biosynthesis Precursor It synthesizes dopamine, norepinephrine and epinephrine inside the body, effectively alleviates mental fatigue caused by high stress, improves concentration and stabilizes mood, making it the core raw material for cognitive and stress-relief supplement formulas.

2.Thyroid Hormone Regulator It serves as the key substrate for T3 and T4 synthesis, balances basal metabolism and relieves fatigue induced by insufficient thyroid secretion, widely used in metabolic care nutritional products.

3.Melanin Synthesis Substrate As the specific substrate of tyrosinase, it regulates melanin generation in skin and hair, brightens uneven complexion and improves premature gray hair, becoming a mainstream functional ingredient for brightening and hair-care cosmetics.

4.Antioxidant & Anti-Photoaging Agent The phenolic hydroxyl structure scavenges free radicals triggered by UV radiation, reduces oxidative skin damage and delays aging, frequently matched with VC and VE in anti-aging skincare formulas.

5.Sports Anti-Fatigue Support It inhibits central nerve fatigue during high-intensity exercise, extends endurance and accelerates post-workout muscle recovery, an essential additive for sports nutrition powder and pre-workout formulas.

6.Animal Breeding Stress Reliever Supplements amino acid nutrition for livestock and aquatic species, eases transport and grouping stress, improves fur gloss and breeding survival rate in poultry, swine and pet feed.

Supply

Sunway Packaging, Supply & Delivery Capacity

Standard Packaging Specifications

Trial Small Batch: 5kg double-layer moisture-proof aluminum foil sealed bag, light-blocking, anti-hygroscopic

Industrial Bulk Shipment: 25kg opaque light-proof fiber drum, stable for long-term warehouse storage

Custom Service: Private label printing and customized packaging available for long-term cooperative manufacturers

Stable Spot Inventory & Production Capacity

SUNWAY maintains year-round sufficient spot stock of L-Tyrosine without seasonal out-of-stock risks. Independent purification and drying workshops support continuous mass production, fully matching monthly bulk demand of large-scale factories.

Mixed Consolidated Shipment Support

L-Tyrosine can be loaded together with all SUNWAY's vitamins, amino acids and specialty bioactive ingredients into one container, eliminating separate delivery fees and cutting your overall procurement and warehouse management costs.

Global Export Logistics & Lead Time

Main Export Regions: Western Europe, Southeast Asia, Latin America, Middle East

Professional logistics team with rich customs clearance experience for food, cosmetic and feed-grade amino acid cargo

Sample Order Lead Time: 1-3 working days after deposit confirmation

Bulk Industrial Order Lead Time: 7-10 working days after deposit payment

Shipment Options: Sea freight, air freight, customer-designated forwarder with real-time order tracking

Applications

Authorized Industrial Application Scenarios

4.1 Human Nutrition & Dietary Supplements

Applicable Finished Goods: Cognitive focus capsules, stress relief chewable tablets, sports pre-workout powder, prenatal multi-amino sachets, thyroid maintenance softgels Recommended Formula Dosage: Daily oral dosage 500mg-2000mg; formula proportion 0.5%-30% Core Matching Advantages: Uniform particle size for smooth tableting, good compatibility with B complex, CoQ10 and Taurine for compound nutritional premixes.

4.2 Functional Food & Beverage Additives

Applicable Finished Goods: Energy functional drinks, brain-boosting instant powder, nutrition bars, fortified dairy and infant supplementary food Core Value: Balances amino acid nutritional profile, mitigates bitter taste of compound nutritional formulas, reinforces anti-fatigue functional claims for sports beverage products.

4.3 Cosmetic & Skincare Raw Materials

Applicable Finished Goods: Brightening anti-aging serums, after-sun repair lotion, anti-hair-loss shampoo, scalp care essence, brightening facial masks Core Value: Secondary deep purification for ultra-low irritation; regulates skin melanin metabolism, blocks UV free radical damage, nourishes hair follicles and improves dry frizzy hair.

4.4 Animal Nutrition Feed Additives

Applicable Finished Goods: Poultry layer premix, swine fattening feed, aquatic compound feed, pet nutritional additives Core Value: Reduces breeding stress response, optimizes meat, egg and fur quality, improves survival rate of young livestock and aquatic species.

Quality

Full-Cycle QC & Compliance Credentials

SUNWAY Complete Four-Stage Quality Control System

1.Raw Material Incoming Inspection: All crude tyrosine raw materials pass heavy metal, impurity and microbial full testing before entering production lines; unqualified materials are strictly rejected.

2.Intermediate Process Monitoring: Real-time tracking of crystallization, filtration and drying temperature; regular sampling test of purity and particle size during production.

3.Finished Product Full-Index HPLC Detection: Every finished batch completes all test items listed on official COA, covering purity, specific rotation, heavy metals and microbial limits.

4.12-Month Batch Sample Retention Mechanism: Sealed representative samples of each batch are preserved for 12 months to support full quality traceability for any after-sales quality verification.

Complete Batch Export Documents Provided Per Shipment

Official Batch COA with full HPLC test data

MSDS / SDS Global Safety Data Sheet

TDS Technical Datasheet

Allergen & Non-GMO Statement

Auxiliary Halal & Kosher certification supporting documents upon request

Global Compliance Standards

All grades meet China GB food additive regulations, enterprise internal standards, USP and FCC international pharmacopoeia specifications, satisfying import inspection requirements of EU, USA, Southeast Asia and other global markets. Separate heavy metal control thresholds for food, cosmetic and feed grades to match different industrial safety standards.

Storage

Storage, Handling & Shelf Life Guidance

Standard Storage Environment

Store unopened original packaging in cool, dry and ventilated warehouse with controlled temperature 10-25C and relative humidity <=60%. Keep far away from direct sunlight, high-temperature equipment and oxidizing substances to avoid discoloration and activity loss caused by photo-oxidation.

Post-Opening Handling Tips

Seal packaging tightly immediately after each use, and finish consumption within 30 days to prevent moisture absorption, caking and impurity contamination. For large bulk drums, nitrogen blanketing treatment is recommended for long-term half-opened storage to isolate oxygen.

Low-Temperature Special Reminder

L-Tyrosine will not crystallize under normal warehouse temperature; no heating treatment is required. Avoid repeated drastic temperature fluctuations to reduce oxidation risk.

Valid Shelf Life

24 months under intact sealed standard storage conditions; all purity and microbial indicators are fully guaranteed within the expiry date.

Why SUNWAY

Sunway Core Competitive Advantages

- Independent Multi-Grade Production & Purification Lines Separate production workshops for food, cosmetic and feed grade L-Tyrosine to eliminate cross-contamination; targeted heavy metal and impurity control standards for different industry regulatory demands.

- Professional One-to-One Formulation Technical Support Our food and cosmetic R&D specialists provide free technical guidance on raw material addition proportion, emulsification parameters and compatibility solutions, solving common production pain points such as powder caking, liquid precipitation and finished product discoloration. Custom compound amino premix development service is available according to customer finished formulas.

- Complete Standardized Export Documentation System Full set of standardized export papers including batch COA with complete chromatogram data, fully meeting customs inspection and third-party laboratory re-test requirements of global importing countries.

- Flexible Tiered Pricing & Order Volume Matching 5kg small trial orders supported for new product R&D; favorable bulk tiered prices for 500kg and 1MT large orders, balancing small-batch research demand and mass production cost control.

- Stable Long-Term Upstream Supply Chain Partnership We maintain long-term strategic cooperation with certified standardized amino acid purification manufacturers, ensuring stable batch purity consistency without periodic quality fluctuation or stock shortage.

Looking for a Reliable L-Tyrosine Supplier?

If you are seeking stable, high-purity L-Tyrosine with complete international compliance documents, Sunway (Hangzhou) Biotechnology Co., Ltd. is your reliable China partner.

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